If you have forgotten an item on board an Iberia flight or in the Madrid VIP Lounges, you must submit your claim via Iberia's Lost and Found
This is the only authorised channel for registering and managing lost property requests. If the item is found, you will receive an email with the steps to follow to retrieve it.
If the item was lost on board a flight operated by another airline, you must manage the search directly with that airline.
If the item was lost in airport facilities (departure lounge, security control, common areas, etc.), you must go to the Lost and Found Office at the relevant airport. You can check their contact details on the airport's website.